Is a relationship worth it if he is always with other girls?

Been down this road. Me & my boyfriend were dating for about 3-4 months. Then he wanted to "break" ( I was f****** heart broken) He dated other girls and I just had a lot of male friends. I tried to do things with him, but he just would blow me off. So I moved on,went 2 months w/o talking to him. Seen him at a friend's Grad party, he was saying how he missed me. Then came to my Grad Party a couple days later and kissed me in front of his current gf! (just happen this pass week btw) All I'm saying is, give him sometime to miss you and he'll around. Take sometime from him.